Compost bin



FIG. 1 is a top and front perspective view of a compost bin showing ournew design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear elevational viewbeing a mirror image of that shown; and,

FIG. 4 is a side elevational view thereof, the opposite side elevationalview being a mirror image of that shown.

The ornamental design for a compost bin, as shown and described.